v4.12.0-beta.1: Rename TACC-Specific Settings, Add PORTAL_NAV_WIDTH

Added

• feat: custom nav width via PORTAL_NAV_WIDTH by @wesleyboar in #837

Changed

• refactor: cmd-79 rename tacc cms settings by @wesleyboar in #792 (3afa0ab)

Full Changelog: v4.11.1...v4.12.0-beta.1